Switch assembly



' July 12, 1960 D. F. MoYER SWITCH ASSEMBLY 2 Sheets-Sheet l Filed may 15. 1957 l//s' Afrox/VU July 12, 1960 D. F. Mon-:R 2,945,106

SWITCH ASSEMBLY Filed May 15. 1957 2 Sheets-Sheet 2 X INVENTOR mmw/Ml ns Arran/vtr This invention relates to a switch assembly. .The in-` vention relates more particularly to an electrically operv able switch assembly sometimes referred to as an electrici relay.

. An object of this invention is toprovide an electrically operated switchl or relay which may be constructed and assembled by. means machinery.

' Another object of this invention is to provide a relay having a rigid support structure for all of the connection terminals or connection lugs.

Another object of this invention is to provide an electrically operable switch mechanism in which all of theV terminals and other electrical connection members. extend from the support structure an equal distance and in which all of the connection members are precisely positioned, thus adapting the mechanism for attachment to boards or panels having printed circuits.

Another object of this invention is to provide a switch assembly in which all of the parts thereof can be assembled in one direction, thus minimizing the costs of the assembly process.

Another object of this invention is to provide a switch mechanism having a single integral support structure forvv all of the'elements of the assembly, including the coil,.

the terminals, the contact members, and the actuator member.

Another object of this invention is to provide a switch assembly which requires a minimum of forming operations in the construction and assembly thereof.

Another object of this invention is to provide a switch mechanism or relay having a low-cost, easily assembled, sturdy, resilient Vmember for biasing the actuator member thereof. Y

Another object of this invention is to provide a relay assembly in which a group of terminals or connection members are retained in proper position withinthe assem.

bly, by means of a single compression inem-ber.

Another object of this invention is to provide a switch assembly within which a wide range of shapes and sizes.

of terminals or connection leads may be used.

VAnother object of this invention is to provide a relay, the parts of which'are not readily disassembled and the contact arrangement and adjustment of which are of a permanent nature and are not susceptible to tampering.`

Other objects and advantages reside in the construction of parts, the combination thereof, the method of manufacture, and the mode of operation, as will become more apparent from the following description. Y

. In the drawings: L

Figure 1 is a front elevational view of a switch assembly or relay mechanism of this invention.

Figure 2 is a sectional view taken substantially on line Y 2-2 of Figure 1.

Figure 3 is a side elevational view of a switch assembly` or relay mechanism of this invention.

vrelay mechanism of this invention.'

of automatically operating nited States Patent Y rFigure 5 is a top plan view of a coil support member ofthis inventionwith the coil attached thereto shown by dotted lines.

Figure `6 is a sectional view taken substantially online 6-6 of Figure 4.

Figure 7 is a rear elevational exploded view of the switch assembly or relay mechanism of this invention.

Figure 8 is a rear view, with parts shown in section, of a preferred modification of the switch assembly of this invention.

Referring to the drawings in detail, a switchassembly or relay mechanism of this invention comprises a-b'ase 12 which is provided .with a plurality of post members integral therewith and extending normal thereto from one' edge thereof. Herein outer posts 14 and an intermediate A post 16 are shown. The posts 14 are substantially iden- 22, all ofwhich, before completion of the assembly, arev tical in form and length. The intermediate post 16 is in substantialzparallel spaced-apart alignment with the outer posts 14. The posts 14 have bifurcated end portions 20 and the post 16 has extending finger members parallel oneto the other as shown in Figure 7.

Each of the post members 14 is provided with an in sulating sleeve member 30 which slidably fits thereover,

- Patented July 12,1960

as shown in Figures 3, 6, and 7. After the insulating sleeves 30 are slidably disposed upon the post members 14, an insulating spacer 32 having a suitable aperture therein is slidably moved upon each of the post members 14 and encompasses its insulating sleeve 30. The spacers 32 also engage the base member 12.

Then a connection lug 34 having a suitable aperturev therein is slidably moved over each of the posts 14 overv the insulating sleeve 30 thereof until the connection lug' 34 engages the spacer 32.

Then an insulating spacer 38, similar to the spacer 32, is moved over each of the posts 14 and over thesleeve 30 thereof until the spacer 38 engages the connection lug 34 thereof.

42 which is preferably circular in shape. The coil 40 also has an upper retainer or support plate 44 which has an arcuate forward portion 46 concentric with the coil 40.

Figure 4 is a top plan view of a switch assembly or disposedwithin the olfsetportion 56 of the'base 12,"

The retainer 44 has a diverging rearward portion provided with short legs 48 each of which has an aperture 49, as shown in Figure 5, adapted to permit the legs 48 to fit over the sleeves 30 of the posts 14. The legs 48 of the support plate 44 rest upon ythe spacers 38, as shown in",

Figures l, 2, 3, 6, and 7. Thus, the coil 40 is supported by the support plate 44 as the support plate 44 rests upon;`

:the spacer member 38. A cylindrical magnetizable core member 50 is inserted through the coil 40. The core member 50 is provided with a slotted upper end 52 and has a reduced portion,

54 at the other end thereof.

The reduced portion 54"v closely fits within an aperture'of an offset portion 56 of' the base 12. An eyelet 57 of non-magnetic material is j shown encompassing the reduced portion 54, engaging the body of the core 50, and engaging the head 62, inter.

posing a non-magnetic gap between the core 50 and the base 12. This prevents detrimental effects of residual magnetism in a well known manner.

A disc v58 has a semicircular cut out portion 60 permitting one edge of the disc 58 to be disposed within the slotted upper end 52 of the core50. The disc 5S is made of non-magnetic material and serves as a shading coil in a known manner for use with alternating current@ energy.

With the shading coil or disc 58 thus disposed` the slotted upper `end 52 of the core 5'0 and withthe reducedv lower end 54 of the core 50 and the eyelet "57" opposed pressure means Aare provided at each end of the core `50 .so that the slotted upper end -52has -the portions thereof bent one toward the other, firmly retaining the edge of the disc 58 Within the slotted upper end 52. Also, .fduring dhe process of applying opposed pressure to Ithefendsfotf :the core 50., the lowerireducedportion 554 is upset, forming a head 64, against the lowersur'fac'e 4of in Figure 2. Thus, the core 50 is rmly attached fto the" base 212 and thus the shading Vcoil or .disc '(58 is irnlly attached to the Acore 50 as .thescore 50 extends Ithrough the `coil `40, as bestshown inlFigure.

.The `offset portion 56 of the 'base 3172 :serves 'as farecess for the head 64 so that the head 64 does'tnot 'extend beyond the lower surfaceof :the ybase 172. i Y

A comparatively 4thin spacer 710 .is placed over :each of the pests 14 encompassing lth'esle'eve members 310 thereofand engaging llegs 48 of the support Iplate 44, asshown -in VFigures -l, .2, 3, v6, and 7. '.I'hen a pairfof .lower contact stems 72, each of Whichhas an 'aperture therein' intermediate `the ends thereof, are slidably moved upon posts `14ovcr .thesleeves Stlthereof. There Sis ionelower contact stem 72 disposed `over :each post 14 :and extends laterally therefrom.

I .Then sa spacer 74 is moved over each ofthe posts 14 over its insulating sleeve 30 yand into engagementwith the respective lower contact Lstem 72. Following this, an

intermediate -contact stem 76 having an vaperture therein 1 closelyriitting over theV vsleeve 30 is moved yupon each sleeve 30 and into lengagement 'with the upper "Surface of the .spacer 74 of each post 14. Then .a .spacer 77 is moved over. each of the -posts 14 encompassing its respective insulating sleeve 30 -and engaging its respective.

intermediate contact stem 76. Then an upper contact stem 78 is .placedover each ofthe vposts 14 :encompassing the insulating sleeve 30 thereof. Normally the 'contact stems 47.2, 76, `and 78 extend substantially :parallel one with respect to the others.

The .upper `contact `stem 78 of each post 14`has a contact .79. Each intermediate contact .stem 76 has a con tact l80 at the .upper -and lower surfaces thereof. Also, each lower contact stem 72 carries a contactf81.

Each of thecontact stems 7.2,v 576 `and 78 :is fpreferably resiliently bendable toward and vaway from .the rothers.

in Figures 2, 3 and 4.

Thus, .as the contacts 79 yand 80 are normally in-'engage ment, `as shown in Figure 2, there .is 'a wiping action betweennthe contacts 79 and 80. Also,.as the intermediate stem .76 is bent vso that there is engagement of the `tcontact 80 with the contact S1, as lshown .in Figure 3, there is a wiping action therebetween.

.'Encompassing each'post `14 and its sleeve 30 .and in engagement with the upper contact stem 78 is van vinsulating spacer member 84. Disposed yabove each spacer 84 .and .slightly Vlarger in areaV is a coverinsulating spacer 4 86.A At the top of each post member 14is 4a rigid cover plate 88 which may be of metallic material.

As statedabove, the intermediate post 16 is provided with a pair of upwardly extending `finger members 22 at the endthereof and at opposite lateral edges thereof.

The intermediate post .16 is also provided with ashoulder l portionforming a slot 89 of reduced width at the .lower ends of the lingers 22, as clearly shown in Figure 6.

The slot at the end of the fingers 22 is .comparatively shallow .in depth and upon the bottom thereof .pivotally rests a magnetizable clapper member or actuator yplate 94. The actuator plate or clapper member '94 has .areduced portion 98 which extends through the slot 89. However, the actuator plate 94 has a larger width on either side of the intermediate post 16 so that during placement of the actuator plate 94 into the slot 89, the actuator plate 94 must be moved longitudinally along the post 16 as the actuator plate 94 extends substantially normal thereto. The clapper 94 `has a body portion, substantially the widthof the post 16 extending over the core 50. The clapper 94 has a narrow forward portion 102, asbest shown in Figure 4. The comparatively nar- Resting upon the shoulders formed Ebetween the fingers 22 and ythe slot A89fisa spacer member 110, as shown in Figures 2 and 6. Resting upon the spacer member 110 is a resilient `leaf spring member 112 which 4resiliently engages an upturned end 108 vof the -clapper 94, as shown in Figures 2, 3, and 4.

Resting on the upper surface of the leaf spring 112 is a stop plate 114. The stop plate 114 has bifurcated rearward end portions 116 which are disposed rearwardly of v'the post16 and 'normal thereto. The stop plate `14144 has transverse slots 1115 Ypermitting the plate 114 to'be placed upon the post 16 only by movement Aalong the; fingers 22 as the fingers 22 extend through the slots i1115.

The leaf spring 112 vis h'e'ld Aby the portion of the stop plate 111-4 whichl is forward of the post 1'6 but the leaf spring I1:12 is disposed between the 'bifurcated portions 116 rearwardly of the post 16. Thus, the leaf 'spring 112 is held against the'spacer member 1'10by means of the vstop plate 1114. However, the'le'a'f spring 1152 iis "resiliently movable along *a vertical Aline intermediate the bifurcated fend jportions -1116.

. The 'flower surface of the forward-end of the stop :pla'te I 114 is normally engaged by the clapper member 94 as 'the forward portion of ythe clapper member 94 is re'siliently4 urged against the stop plate 114 by the leaf spring 112, as clearly shown in Figure 2.

The elements -of the assembly comprising the 'supportplate, the spacers, the connector lugs, the contact stems,

and the lcover member Iencompassing each'of the posts' v14 and the sleeve 30 thereof are lfirmly retained in position by means of the bifurcated end portions 20' of Athe? posts v14 which are "bent'tover, vas shown in l Figures l and 6, while the elements `are held in compression. Simu`ltaneous'ly with the bending `over of the bifurcated vrend portions '20 Vof -the posts 14, the lingers 22 of the intermediate posts 16 are bent one toward the other, as 'shown in Figures 1 and 6, irmly v-retaining the stop `plate 114, the spring 1`12,and-the-sp'acer 110.

The coil v40 is provided with -ajpair of 'electrica'leconnection leads 11-8 which are ysoldered or Aattached fin *any other `suitable manner to the connection lugs 34, as shown in Figures -1 Aand As clearly shown in Figures 2 and 3, the contact stemsl 72, 76, 'and 78 and theconnection lugs '34 `vextend ,rearwardly from the posts -14 so that 'these connection 'ele-- ments can readily `be Iattached toyany suitable V'electrical conductor members. jFhese connection elcmentsfmay be of any,l desired ylength or shape and are 'iirmly retained in precise position so 'that 'the `entire `switch assembly' or relay of 'this invention 4is adapted for electrical and physical attachment to prearran'gedpanels and circuits.

'When the coil '40 "is energized, the lcore 50 is magay stem 76 vis moved 'from vits Anormal engagement with the contact 79 of the Stem '78. The 'contact 'stems 76 are bent downwardly by the 'arms 10"4 bringing the .contacts into engagement with the contacts 81 of 'the Contact stems "72. o Y

As stated above, due to the 'fact that the stems 72 and 76 are resilient, the'stems 76 ymove slightly tow-ard 'the oil 40 after engagement of the contacts 80 with the con-I tcts 81.' This provides a wiping action between the coriltacts 80 and 81.

Thus, it is understood that when the coil 40 is Aenergized the normally-closed circuits between eachrpair of contact stems 76 and 78 are opened yand circuits are established between each pair of contact stems 72 and 76. When the coil 40 is deenergized the clapper 94 is returned to engagement with the stop platey 114 by the resilient leaf spring 112. Thus, the ends of the contact stems 76 are permitted to resiliently return to the normal position thereof adjacent the stems 78 so that the contacts 80 are again in engagement with the contacts 79. Figure 8 shows a rear elevational view of a preferred modification of a switch assembly or relay mechanism of this invention.

A base 120 is provided with post members 122 integral therewith and substantially normal thereto at the rearward edge thereof. The post members 122 are substantially square in cross section thus permitting a comparatively small insulating sleeve 124 to be placed upon each of the post members 122. Y

A connector lug 125 and a plurality of contact stems 126 encompass each post 122and the sleeve 124 thereof. Also, a support plate 127 for a coil 128 encompasses each post 122 and the sleeve 124 thereof.

A plurality of spacer members 129 encompass each of the post members 122 and the sleeve member 124 thereof separating the contact stems 126 one from the other and separating the support plate 127 and the connector lug 125 in a manner similar to that described with respect to the preferred embodiment.

An intermediate post 13) pivotally carries an actuator plate or clapper member 132 in a manner similar to that discussedwith respect to the clapper member 94 of the preferred embodiment. The intermediate post 136 also carries a spacer 134, a leaf spring 136, and a stop member 138. l

The intermediate post 130 is provided with finger members 139 at the upper end thereof which are bent over against the stop member 138. Thus, the stop member 133 is firmly retained in engagement with the leaf spring 136 so that the leaf spring 136 is firmly secured between the stop member 138 and the spacer 134, in a manner similar to that described with respect to the preferred embodiment.

A single cover plate 140 extends between the posts 12.2 and engages the uppermost spacer member 12% of each of theposts 122. Each of the posts 122 has an upper end 146 which is bent over against the cover plate 140, thus firmly retaining the cover plate 140 l'against the uppermost spacer member 129, thus firmly securing in proper position all of the elements encompassing each of of the posts 122.

It is to be understood that the switch mechanism of this invention is operable in any position.

It is also to be understood that the clapper member or actuator plate and contact stems of this invention may be so arranged that various combinations of normallyopen or normally-closed circuits may be operated as the clapper member is actuated.

From the drawings and description above, it is readily understood that the switch assembly or relay mechanism of this invention may be assembled by automatically operating machinery. Furthermore, it is obvious that the assembly of this invention is sturdily constructed and has a minimum number of moving parts.

Although the preferred embodiment of the device has been described, it will be understood that within the purview of this invention various changes may be made in the form, details, proportion and arrangement ofparts, the combination thereof and mode of operation, which generally stated consist in Ia device capablel of carrying out the objects set forth, asdisclosed and de'- ined in the appendedclaims.

Having thus described my invention, Iclaim l. A switch assembly comprising a base, a plurality-A of spaced-apart post members attached to' the base and extending-normal thereto, the post members being in parallel alignment adjacent one edge of the base, there being a pair of outer post members and an intermediate post member, a pair of insulating sleeve members, there being an insulating sleevel member encompassing each of the outer post members, a support plate provided with a pair of apertures therein each of which encompasses one of the outer post members, spacer members encircling the outer post members and engaging the base and ther circling each of the outer post members, each ofthe stems having a portion normally extending substantially parallel to the support plate, spacer means encircling each of the outer post members and interposed among the contact stems which encircle the post members for separation thereof, a magnetizable actuator pivotally carried by the intermediate post member, a leaf spring member carried by the intermediate post member in spaced relation from the actuator and having an extending portion in resilient engagement with the actuator, the spring member urging the actuator in a direction away from the core, the actua tor being engageable with the core upon energization of the coil, means attached to' the actuator and engageable with at least one contact stem carried by each post member for movement thereof with respect tothe other contact stems.

2. In a relay assembly comprising a magnetizable support structure, the support structure having a first portion and a second portion, the portions being normal one to the other, a coil, a support plate attached to the coil, the support plate being carried b-y the first portion of the support structure with the coil disposed adjacent the second portion, a magnetizable co're extending through the coil, the core having one end thereof attached to the second portion, the other end of the core having a slot therein, a shading coil firmly retained in the slot by to the actuator plate and engageable with one of the i contact stems for movement thereof with respect to the other contact stem as the actuator plate pivotally moves toward the core, a connector lug electrically attached to the coil and s-upported by the rst portion of the support structure, and insulating means electrically separating the contact stems and the connector lug one from the other and from the support structure.

3. In a switch mechanism comprising a base, a pair of posts integral with the base and extending from one side of the base, the base having an aperture therein, a core having a reduced portion extending through the aperture of the base, the core extending from the base in the same direction as the posts, the end o'f the core opi posite the base having a slot therein, a shading coil of' non-magnetic material partially disposed within theslot, the endsrof the core being upset thus retainingthe shadingv coil within the slot at one end thereof and thus securing thecore to the base, `a coil `encircling the co're, the coil having a support plate attached thereto, the support plate having a pair-of apertures therethrough, the posts slidably 4extending through the apertures, KYa plurality of electrical connection members, each of the connection members having Van aperture lth'erein, leach -of the posts slidably extending through at least two ofthe connection members, a plurality of spacer members, each of the spacer merrib'ers 'having an aperture therethrough, there being -a plurality Lof spacer members slidably encircling each of the posts Vand separating the connection members thereof one from the other 'and separating 4they support plate from the base, a third post integral with the base and extending therefrom at the same side thereof as the pairofposts, and an actuator carried by the third post.

4. In a switch mechanism comprising a base, a 'pair of posts integral with the base and Yextending from one side of the base, the base having an aperture therein, a core having a reduced portion extending through the aperture of the base, the core extending from the base in the same direction as the posts, a coil encircling the core, the coil having a support plate attached thereto, the support plate having a pair Vof apertures therethrough, the posts lslidably extending through the apertures, a plurality of electrical connection members, each of the connection members having an aperture therein, each of the posts slidably extending through at least two of the connection members, a plurality of spacer members, each o'f the spacer members having an aperture therethrough, there being a plurality of spacer members slidably encircling each of the posts and separating the connection members thereof one from the other and separating the support plate from the base, anda third post attached to the base and extending therefrom in the direction of the pair of posts, the third post having a longitudinal notch therein at the end thereof opposite the base, an actuator plate having a width substantially equal to the width of the third post, the actuator plate having a pair of lateral notches therein at opposite edges thereof, the actuator plate being pivotally carried by the third post within the longitudinal notch thereof with the lateral notches of the actuator plate intermeshed with lateral portions of the third post.

5. In a relay mechanism comprising a magnetizable base, a plurality of magnetizable posts attached thereto and vextending therefrom at Vone side thereof, a magnetizable core attached to the base and extending therefrom at the same side as the posts, a coil Iencircling the core, .a support plate attached to the coil, the support plate encircling atleast one of the posts and slidably movable thereupon, a spacer member slidably movable upon the last said post and separating the support plate from the base, a plurality of electrical connection members slidably movable upon one of said posts and extending laterally therefrom, a spacer member 'encircling the last said `post and separating the connection members, an actuator member carried b y one of the posts and movable `toward and away from the core, a leaf spring carried by one of the posts and in engagement with the actuator member urging `the 4actuator member in a direction from the core, at least one of the connection members being a switch member, the actuator member being movable to engage the switch member for .operation thereof, atleast one of the 'connection members being a connection lug, the coil being electrically connected to the connection lug.

-6. In a relay mechanism, magnetizable support struc ture, a core attached to the support structure -and extending therefrom, a coil encircling .the core, a magnetizable actuator plate carried by the support structure and movable toward land away from the core, a leaf spring carried by the support structure and in engagement with the Vactuator ',plate urging the actuator platefinfa direction -fromthe core, a plurality of resiliently movable `switch members mounted upon the 4support structure so that a portion of each switch member en.

compasses a portion of the support structure, the actuator `7, ln a relay assembly, a magnetizable base member, a lplurality 4of magnetizable post `members integral with the base member Vand angular thereto, a magnetizable core member `attached to the base and extending therefrom, an electric coil encircling the core member, `a Y plurality -of resilient electrical connection members en compassing at least one of the post members and extending therefrom and carried thereby, and insulator means separating the connection `members one from` the ment thereof with respect to another connection member.

z8. In arelay assembly, magnetizable support structure,

a magnetizable core attached to the support structure,

a coil encompassing the core, a magnetizable 'actuator' member carried by the support structure andA movable toward and away from the core, a leaf spring carried by the support structure and engageable with the actuator member urging movement thereof in a direction away from the core.

9. in a switch mechanism, a magnetizable base member, a magnetizable post member integral with the base member and substantially normal thereto, aplurality of conductor members encompassing the post member and carried thereby, insulator means encompassing the post member separating the conductor members one from the other and separating the conductor members from the post member, a cover plate encircling the post member adjacent the end thereof, the post member having an end portion bent over against the cover plate thus firmly retaining the conductor members and insulator means with respect to the post member and with respect to the base.

l0. In a switch mechanism, a magnetizable base, a pair of posts integral with the base and extending from one side of the base, the base having an aperture therein, a core having a reduced portion extending through the aperture of the base, the core extending from the base in the same direction as the posts, a coil encircling the core, a plurality of electrical connection members, each of the connection members having an aperture therein, each of the posts slidably extending through at least two of lthe connection members, a `plurality of insulator memtending therefrom at the same side thereof as the pair of posts, a magnetizable actuator carried `by the third post, the actuator having -a portion movable toward and away 'from the .core `and engageable with at least vone connection member of each of the posts :for `operation thereof.

ll. A relay assembly comprising a magnetizablesupport structure, the support structure having a first portion anda second portion, said portions being angularly dis posed one with respect to the other, a core carried by thesecond portion and extending substantially parallel to the first portion, a coil encircling the core, a .plurality of "electrical connection lugs electrically connected to the .coil and .directly vcarried by the rst portion .of `the support structure, a magnetizable actuator member pivotally carried by said first portion and vhaving a section thereof movable toward and yaway from the core, a resilient 'spring member carried by said 4rst :section and in engagement with the actuator member urging the actuator member in a direction ,from .the core, the `actuator member being movable toward the core with energization of the coil, and resilient switch means attached directly to the rst portion of the support structure and extending adjacent the actuator member, the switch means being engageable by the actuator member for operation thereof during movement of the actuator member toward the core.

'112. A relay mechanism comprising a magnetizable base member, a plurality of magnetizable post members attached to the base member and extending substantially normal thereto, a coil, a magnetizable core attached to the base member and' extending through the coil, a plurality of current conductive resilient stems directly carried by one of the post members, means electrically separating the stems and insulating the stems from the post member, the stems extending substantially normal to the post members, the stems having extending portions adjacent the core and engageable one with the other, a magnetizable actuator pivotally carried by one of the post members, the actuator being movable toward and away from the core, a leaf spring carried by one of the post members, the leaf spring engaging a portion of the actuator and urging the actuator in a direction from the core, a plurality of electric connection lugs carried by at least one of the post members and electrically connected to the coil, energization of the coil causing magnetization of the core and the base member and the post members and the actuator causing pivotal movement of the actuator toward the core, the actuator having portions thereof engageable with at least one of the stems causing relative movement between said stems.

13. A relay assembly comprising magnetizable support structure, the support structure being provided with a first portion and a second portion, said portions being substantially normal one to the other, a magnetizable core attached to the second portion, a coil encompassing the core, an actuator plate carried by said iirst portion and movable toward and away from the core,l a leaf spring member engaging the actuator plate urging the actuator plate in a direction from the core, and resiliently operable switch means carried directly upon the first portion and extending adjacent the actuator plate, the switch means being engageable by the actuator plate for operation of the switch means during movement of the actuator plate.

14. A switch mechanism comprising a magnetizable base, a iirst magnetizable post and a second magnetizable post attached to the base and extending normal thereto, a magnetizable core attached to the base, a coil encircling the core, an electrical connection lug electrically connected to the coil and directly supported by the rst post, a plurality of resiliently movable electrical contact stems engageable one with another and attached directly to the lirst post and extending adjacent the core, means insulating the connection lug and the contact stems from the first post, a magnetizable actuator plate pivotally carried by the second post and extending adjacent the core, the actuator plate being movable toward [the core with energization of the coil, a leaf spring carried by one of the posts and in engagement with the actuator plate and urging the actuator plate away from the core, an arm attached to the actuator plate and engageable with one of the contact stems for movement thereof with movement of the actuator plate.

15. In a switch mechanism, a magnetizable base, magnetizable post means attached to the base substantially normal thereto, an actuating coil, a pair of connector lugs encompassing the post means and electrically connected to the coil, a magnetizable core firmly attached to the base and extending through the coil, a magnetizable actuator member directly carried by the post means and having a portion movable toward and away from the core, resilient means carried by the post means urging the actuator member away from the core, and switch means directly attached to the post means and extending adjacent the actuator member, the actuator member having portions thereof engageable with the switch means for operation thereof.

16. A switch mechanism comprising a magnetizable base, a plurality of magnetizable posts integral with the base and extending from the base, the base having an aperture therein, a core extending through the aperture of the base and attached to the base, the end of the core opposite the base having a slot therein, a shading coil of non-magnetic material having a portion disposed within the slot, the ends of the core being upset thus retaining the portion of the shading coil within the slot, a coil encircling the core, a plurality of electrical connection members, each of the connection members having a portion encompassing a post and extending therefrom, insulator means separating the connection members one from the other and from the posts, and a magnetizable actuator carried by one of the posts and extending adjacent the core and movable into engagement with at least one of the connection members for movement thereof with respect to another connection member.

References Cited in the le of this patent UNITED STATES PATENTS 1,952,917 Graneld Mar. 27, 1934 2,055,175 Franz Sept 22, 1936 2,154,338 Knos Apr. 11, 1939 2,586,320 Ford Feb. 19, 1952 2,588,257 Lewus Mar. 4, 1952 2,658,961 Fisher Nov. 10, 1953 2,683,192 Vincent July 6, 1954 2,744,978 Romer May 8, 1956 2,798,916 Fisher July 9, 1957 2,857,494 Lace Oct. 21, 1958 

